I assume now you are asking on how to report the sale.
The sale would be shown in the Investments Section of TurboTax.
You basis (or cost) of the home would be made up of two parts.
25% from 1990 and 75% on date of death.
The 25% on the gift in 1990 would be your mothers cost of 25% of the house or the Fair Market Value at the time, whichever is lower.
The 75% would be the value of 75% of the house on date of death.
You would add these two together for your cost.
To show the sale in TurboTax go to Income section,
To
enter your Investments sold
Click
on Federal Taxes
Click
on Wages and Income
Click
on I'll choose what I work on
Scroll
down to Investments
On
Stocks, Bonds, Other, click the start or update button
